package com.example.lock;

import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

class ShareResource {
	private int flag = 1;
	private Lock lock = new ReentrantLock();
	private Condition c1 = lock.newCondition();
	private Condition c2 = lock.newCondition();
	private Condition c3 = lock.newCondition();

	public void print5(int loop) throws InterruptedException {
		lock.lock();
		try {
			while (flag != 1) {
				c1.await();
			}
			for (int i = 1; i <= 5; i++) {
				System.out.println(Thread.currentThread().getName() + " :: " + i + " :: " + loop + "轮");
			}
			flag = 2;
			c2.signal();
		} finally {
			lock.unlock();
		}
	}

	public void print10(int loop) throws InterruptedException {
		lock.lock();
		try {
			while (flag != 2) {
				c2.await();
			}
			for (int i = 1; i <= 10; i++) {
				System.out.println(Thread.currentThread().getName() + " :: " + i + " :: " + loop + "轮");
			}
			flag = 3;
			c3.signal();
		} finally {
			lock.unlock();
		}
	}

	public void print15(int loop) throws InterruptedException {
		lock.lock();
		try {
			while (flag != 3) {
				c3.await();
			}
			for (int i = 1; i <= 15; i++) {
				System.out.println(Thread.currentThread().getName() + " :: " + i + " :: " + loop + "轮");
			}
			flag = 1;
			c1.signal();
		} finally {
			lock.unlock();
		}
	}
}

public class ThreadDemo3 {
	public static void main(String[] args) {
		ShareResource shareResource = new ShareResource();
		new Thread(() -> {
			for (int i = 1; i <= 10; i++) {
				try {
					shareResource.print5(i);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
		}, "AA").start();

		new Thread(() -> {
			for (int i = 1; i <= 10; i++) {
				try {
					shareResource.print10(i);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
		}, "BB").start();

		new Thread(() -> {
			for (int i = 1; i <= 10; i++) {
				try {
					shareResource.print15(i);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
		}, "CC").start();
	}
}
